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The fractional change due to intensity on minority charge carriers is more than on majority charge carriers. When light is directly polarized it acts like a normal diode but when reverse polarized its current depends on the brightness (intensity of incident light).
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoThe reverse bias condition makes the photo diode as light intensity to voltage converter
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What are characteristics of an ideal diode?
An ideal diode:Passes current in one direction only. (Under forward bias).Has no leakage current (passes no current under reverse bias).Has no forward voltage drop. (No voltage loss under forward bias - a real diode has Vd~=0.7)See links for more details.
Does diode flow current in reverse bias?
Diodes will have a small leakage current in reverse bias. In most cases, this current can be considered insignificant and ignored.
A zener diode is invariably used with?
Reverse bias
What happens when diode is supplied with a voltage higher than RIV in reverse bias?
when diode is supplied with a voltage higher than RIV in reverse bias, the diode will burn out and will have zero resistance.
What happens to the diode if it has high piv?
It can be connected in high reverse bias voltage .
What is the function of photodiode?
the function of a photodiode is produce some reverse current in the external resistor of circuit.
What are the different types of biasing?
Fixed Bias,Self Bias, Forward Bias, Reverse Bias
Characteristics of curve of an ideal diode with diagram?
0V forward bias knee voltage0 ohm forward bias resistance0A reverse bias currentinfinite ohm reverse bias resistanceno parasitic capacitance or inductance
Why ammeter is connected in different way in forward and reverse bias zenner diode?
The ammeter is connected in different way in forward and reverse bias zenner diode. So that all of the board will work right going forward and reverse.
What are the two bias conditions for a diode?
The two bias conditions for a diode are forward and reverse
Is DC biased is forward biased?
Forward bias implies that your device is sensitive to bias direction and you have selected one of them. There is also an implication that it is probably a steady bias. So forward bias generally implies a dc bias in a selected direction called forward bias in the device you are looking at. Now the question is actually put the other way round. DC bias means a steady state bias. Whether or not it is forward or reverse bias depends on whether or not the device is sensitive to the direction of bias. If it is not sensitive to that, it isn't forward bias (or reverse bias either). If it is sensitive to bias direction, then it would be in a state of either forward bias or reverse bias, and you would need more information in order to say which one. So, finally, the phrase "dc biased" is NOT the same thing as "forward biased".
Forward bias and reverse bias?
forward bias is in the direction a junction or vacuum tube wants to conduct currentreverse bias is in the direction a junction or vacuum tube opposes conducting current
What will happen if no applied bias In forward bias and reverse bias?
If no forward or reverse bias is applied from outside then the diode or transistor(I'm not sure for which did you ask) is in internal equilibrium. thus there's a field created in each junction which prevents the flow of charges across it..
What is the voltage drop of an ideal diode?
forward bias 0 volts, reverse bias infinity volts.
Why do diode has two resistance values in ieone in forward bias other in reverse bias?
because the current push to the junction.
Why the resistance of forward bias is equals to zero nd resistance of reverse bias is infinite?
the junction is conducting when forward biased, approaching zero resistancethe junction is nonconducting when reverse biased, approaching infinite resistanceneither is exactly zero or infinite
What happens in the depletion region in reverse bias?
in forward biasing depletion region width decreases and in reverse biasing it increases .
